Step 1 of 2: conditional passes.
Rationale:
The change adds a return value to Run() in preparation of
conditional pass execution. The value returned by Run() is
best effort, returning false means no optimizations were
applied or no useful information was obtained. I filled
in a few cases with more exact information, others
still just return true. In addition, it integrates inlining
as a regular pass, avoiding the ugly "break" into
optimizations1 and optimziations2.
Bug: b/78171933, b/74026074
Test: test-art-host,target
Change-Id: Ia39c5c83c01dcd79841e4b623917d61c754cf075
diff --git a/compiler/optimizing/optimization.h b/compiler/optimizing/optimization.h
index c170f15..b00d686 100644
--- a/compiler/optimizing/optimization.h
+++ b/compiler/optimizing/optimization.h
@@ -47,8 +47,9 @@
// 'instruction_simplifier$before_codegen'.
const char* GetPassName() const { return pass_name_; }
- // Perform the analysis itself.
- virtual void Run() = 0;
+ // Perform the pass or analysis. Returns false if no optimizations occurred or no useful
+ // information was computed (this is best effort, returning true is always ok).
+ virtual bool Run() = 0;
protected:
HGraph* const graph_;